Answer:
Hydrogen in the core of the star is converted to helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by fusion, the core becomes unstable and contracts.
The lithosphere a combination of the crust and the uppermost brittle layer of the mantle is divided into tectonic plates, including the seven major tectonic plates.
Answer and Explanation :
We learn lots of things in the class which relevant to our day to day life. There we learn about reuse, recycle,that you can use in daily life. Try to reuse the glass bottles, plastic bags and try to recycle the paper (by buying the old newspapers to factories so that they can recycle it there). We can learn to take resolution of growing a plant every year and you can learn to live with cooperation These are way to incorporate lessons from the global environment.
There are many ways in which we can learn but the important thing is that we should have interest to learn From society class, we can learn to stop discriminating people on the basis of caste and class or race. We can learn about the society and how should be tackle the problems related to education, health etc.
Lots of people were dead so they wasn’t anyone to farm or work
